Bought this product for my husband who has the Clint Eastwood type hair line. He has been using it for 3 years now and his hair has never been healthier or thicker. Not sure if it is an actual "treatment" since it is sold as a shampoo...but sometimes I think his hair is actually growing back. He has had to cut his hair more times this year than I have ever seen in the 15 years I have know him. I sneak a little once and a while when I want Big Mega Night-Out Hair. The scent is slightly manly...but it doesn't really last so I would recommend this product for women with thin or thinning hair too!